Dirt Bike Rear Suspension
Dirt Bike Rear Suspension Parts: Lowering Rods, Swingarm Bearings & Shock Springs at JJ Motorsports
Upgrade your dirt bike's rear suspension with premium parts from JJ Motorsports, designed for better damping and durability in motocross, enduro, and trail riding. These components improve handling and reduce wear for reliable performance.
Shop Moose Offroad, Moose Racing, and Factory Connection rear suspension parts for durable, easy-to-install upgrades. Explore related categories such as dirt bike suspension for front forks and shocks, or dirt bike frame and body for guards and panels to complete your build and achieve balanced, responsive ride quality across all conditions, from high-speed jumps to technical singletrack.
Top Dirt Bike Rear Suspension Parts
- Moose Offroad Lowering Pull Rod 0419-0022 – Adjustable aluminum rod for lowering rear suspension; fits Honda CRF and Yamaha YZ for improved ergonomics.
- Moose Racing Swingarm Bearing Kit 28-1231 – Complete sealed bearing kit for swingarms; smooth rotation on Kawasaki KX models.
- Factory Connection Shock Spring ANB-0034 – Progressive rear shock spring for Factory Connection shocks; tunes damping for KTM SX.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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RACE TECH Progressively Wound Shock Spring - Orange - P05 - Spring Rate 336 lbs/in SRSP 6326P05
RACE TECH
$199.99Rear suspension setup is a balancing act—too stiff and your chassis chatters over bumps; too soft and you're constantly fighting bottoming on aggressive entries. The RACE TECH Progressively Wound Shock Spring solves this compromise by delivering a plush...13120188- SKU:
- 13120188
- Availability:
- Ships Same Business Day
- Weight:
- 5.02 LBS
- PROGRESSIVE SPRING RATE IMPERIAL:
- 336.00 LB/IN INITIAL
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
- TYPE:
- P05
- SPRING TYPE:
- PROGRESSIVE WOUND SPRING
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- COLOR/FINISH:
- SHOT PEENED
- LENGTH IMPERIAL:
- 10.25'
- PROGRESSIVE SPRING RATE METRIC:
- 6.00 KG/MM INITIAL
- RIDING STYLE:
- OFF-ROAD
$199.99Qty in Cart: 0Quantity:Price:$199.99Subtotal: -
RACE TECH Progressively Wound Shock Spring - Orange - P10 - Spring Rate 375 lbs/in SRSP 6326P10
RACE TECH
$199.99Rear suspension that's too firm on small bumps yet still bottoms under load creates a frustrating compromise—until now. RACE TECH's progressively wound shock spring solves this dual problem by increasing resistance as the spring compresses, delivering a...13120189- SKU:
- 13120189
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- COLOR/FINISH:
- SHOT PEENED
- PROGRESSIVE SPRING RATE IMPERIAL:
- 375.00 LB/IN INITIAL
- TYPE:
- P10
- COLOR/FINISH:
- BLUE
- LENGTH IMPERIAL:
- 10.25'
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- SPRING TYPE:
- PROGRESSIVE WOUND SPRING
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PROGRESSIVE SPRING RATE METRIC:
- 6.70 KG/MM INITIAL
$199.99Qty in Cart: 0Quantity:Price:$199.99Subtotal: -
RACE TECH Shock Spring Collar Adapter for all Beta SPSC B6461N
RACE TECH
$5.95A properly functioning rear shock collar adapter is critical to maintaining suspension geometry and damping performance under load. This RACE TECH adapter ensures precise fitment and alignment, preventing premature wear on your shock components and...13120326- SKU:
- 13120326
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- LENGTH METRIC:
- 10.50 MM
- OUTSIDE DIAMETER IMPERIAL:
- 2.52'
- PRODUCT NAME:
- ADAPTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SHOCK SPRING COLLAR
- COLOR/FINISH:
- SILVER
- LENGTH IMPERIAL:
- 0.41'
- UNITS:
- EACH
- COLOR/FINISH:
- SHOT PEENED
- INSIDE DIAMETER IMPERIAL:
- 1.64'
- MOUNTING POSITION:
- REAR
$5.95 -
RACE TECH Front/Rear Spring - Blue - Race Series - Spring Rate 269 lbs/in SRSP 652648
RACE TECH
$149.99Precision suspension geometry demands springs engineered to exact specifications—this RACE TECH unit delivers consistent spring rates within 0.05 kg/mm tolerance, ensuring predictable handling across every lap. Built from premium chrome silicon wire with...13120327- SKU:
- 13120327
- Availability:
- Ships Same Business Day
- Weight:
- 3.79 LBS
- COLOR/FINISH:
- BLUE
- LINEAR SPRING RATE IMPERIAL:
- 269.00 LB/IN
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- RACE SERIES®
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SHOT PEENED
- LENGTH IMPERIAL:
- 10.125'
- LINEAR SPRING RATE METRIC:
- 4.80 KG/MM
- UNITS:
- EACH
$149.99 -
RACE TECH Front/Rear Spring - Blue - Race Series - Spring Rate 280 lbs/in SRSP 652650
RACE TECH
$149.99Precision suspension geometry demands springs that deliver consistent performance lap after lap without compromise. The RACE TECH 280 lbs/in front/rear spring is engineered for racers who need predictable, repeatable handling characteristics—eliminating...13120328- SKU:
- 13120328
- Availability:
- Ships Same Business Day
- Weight:
- 3.64 LBS
- COLOR/FINISH:
- SHOT PEENED
- LENGTH IMPERIAL:
- 10.125'
- LINEAR SPRING RATE IMPERIAL:
- 280.00 LB/IN
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- BLUE
- LINEAR SPRING RATE METRIC:
- 5.00 KG/MM
- MODEL:
- RACE SERIES®
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- SHOCK SPRING
- UNITS:
- EACH
$149.99 -
RACE TECH Front/Rear Spring - Blue - Race Series - Spring Rate 290 lbs/in SRSP 652652
RACE TECH
$149.99A precision-engineered suspension component demands a spring that matches your performance expectations—and the RACE TECH Front/Rear Spring delivers exactly that. Built from premium chrome silicon wire and shot-peened for durability, this 290 lbs/in...13120329- SKU:
- 13120329
- Availability:
- Ships Same Business Day
- Weight:
- 3.93 LBS
- LENGTH IMPERIAL:
- 10.125'
- MOUNTING POSITION:
- REAR
- LINEAR SPRING RATE IMPERIAL:
- 290.00 LB/IN
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- LINEAR SPRING RATE METRIC:
- 5.20 KG/MM
- MODEL:
- RACE SERIES®
- COLOR/FINISH:
- SHOT PEENED
- RIDING STYLE:
- OFF-ROAD
$149.99 -
RACE TECH Progressively Wound Shock Spring - Blue - P30 - Spring Rate 532 lbs/in SRSP 6326P30
RACE TECH
$199.99Rear suspension geometry demands precision—too stiff and your chassis chatters; too soft and you're kissing the bump stops. RACE TECH's progressively wound shock spring solves this compromize by delivering initial compliance for comfort while building...13120121- SKU:
- 13120121
- Availability:
- Ships Same Business Day
- Weight:
- 6.75 LBS
- COLOR/FINISH:
- BLUE
- COLOR/FINISH:
- SHOT PEENED
- PROGRESSIVE SPRING RATE IMPERIAL:
- 532.00 LB/IN INITIAL
- PROGRESSIVE SPRING RATE METRIC:
- 9.50 KG/MM INITIAL
- RIDING STYLE:
- OFF-ROAD
- LENGTH IMPERIAL:
- 10.25'
- MOUNTING POSITION:
- REAR
- SPRING TYPE:
- PROGRESSIVE WOUND SPRING
- PRODUCT NAME:
- SHOCK SPRING
- TYPE:
- P30
- UNITS:
- EACH
$199.99 -
RACE TECH Front Spring - Blue - Sport Series - Spring Rate 258 lbs/in SRSP 462046
RACE TECH
$149.99A properly tuned front spring is fundamental to consistent lap times and predictable handling—this is where suspension geometry meets physics. The RACE TECH Sport Series spring delivers a 258 lbs/in rate engineered for drivers who demand both...13120018- SKU:
- 13120018
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MODEL:
- SPORT SERIES
- PRODUCT NAME:
- SHOCK SPRING
- LINEAR SPRING RATE METRIC:
- 4.60 KG/MM
- MOUNTING POSITION:
- FRONT
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- LENGTH IMPERIAL:
- 8.00'
- LINEAR SPRING RATE IMPERIAL:
- 258.00 LB/IN
- RIDING STYLE:
- OFF-ROAD
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
RACE TECH Rear Spring - Blue - Sport Series - Spring Rate 280 lbs/in SRSP 462050
RACE TECH
$149.99A properly tuned rear spring is fundamental to consistent cornering performance and predictable weight transfer during competitive driving. The RACE TECH Sport Series delivers the precision stiffness you need for responsive handling without sacrificing...13120020- SKU:
- 13120020
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MODEL:
- SPORT SERIES
- COLOR/FINISH:
- BLUE
- LENGTH IMPERIAL:
- 8.00'
- LINEAR SPRING RATE IMPERIAL:
- 280.00 LB/IN
- LINEAR SPRING RATE METRIC:
- 5.00 KG/MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
$149.99 -
RACE TECH Rear Spring - Blue - Sport Series - Spring Rate 300 lbs/in SRSP 462054
RACE TECH
$149.99If you're serious about corner speed and consistent lap times, suspension geometry matters—and that starts with a spring that delivers predictable, linear rate characteristics without fade. The RACE TECH Rear Spring gives you the stiffness you need to...13120021- SKU:
- 13120021
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- LINEAR SPRING RATE METRIC:
- 5.40 KG/MM
- LINEAR SPRING RATE IMPERIAL:
- 300.00 LB/IN
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- LENGTH IMPERIAL:
- 8.00'
- MODEL:
- SPORT SERIES
$149.99 -
RACE TECH Progressively Wound Shock Spring - Orange - P15 - Spring Rate 195 lbs/in - 285 lbs/in SRSP 6326P15
RACE TECH
$199.99Rear suspension that punishes you on every bump doesn't belong on a track car—or a street machine. This RACE TECH progressive spring solves the dual problem of harshness and bottoming by ramping up resistance as the suspension compresses, giving you a...13120022- SKU:
- 13120022
- Availability:
- Ships Same Business Day
- Weight:
- 5.20 LBS
- PROGRESSIVE SPRING RATE IMPERIAL:
- 420.00 LB/IN INITIAL
- COLOR/FINISH:
- SHOT PEENED
- LENGTH IMPERIAL:
- 10.25'
- PROGRESSIVE SPRING RATE METRIC:
- 7.50 KG/MM INITIAL
- SPRING TYPE:
- PROGRESSIVE WOUND SPRING
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- P15
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
$199.99Qty in Cart: 0Quantity:Price:$199.99Subtotal: -
RACE TECH Progressively Wound Shock Spring - Gray - P20 - Spring Rate 454 lbs/in SRSP 6326P20
RACE TECH
$199.99Rear suspension that's constantly harsh or prone to bottoming compromises both comfort and control—especially under demanding track conditions. The RACE TECH Progressively Wound Shock Spring solves this with a design that firms up progressively,...13120023- SKU:
- 13120023
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
- LENGTH IMPERIAL:
- 10.25'
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
- PROGRESSIVE SPRING RATE IMPERIAL:
- 454.00 LB/IN INITIAL
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- SHOT PEENED
- COLOR/FINISH:
- SILVER
- PROGRESSIVE SPRING RATE METRIC:
- 8.10 KG/MM INITIAL
- SPRING TYPE:
- PROGRESSIVE WOUND SPRING
- TYPE:
- P20
- UNITS:
- EACH
$199.99 -
RACE TECH Progressively Wound Shock Spring - Orange - P25 - Spring Rate 493 lbs/in SRSP 6326P25
RACE TECH
$199.99Rear suspension that's simultaneously compliant and responsive is rare—until now. This progressively wound spring solves the dual problem of harshness over small bumps and insufficient bottoming resistance, delivering a plush ride without sacrificing...13120024- SKU:
- 13120024
- Availability:
- Ships Same Business Day
- Weight:
- 5.60 LBS
- LENGTH IMPERIAL:
- 10.25'
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SHOT PEENED
- PRODUCT NAME:
- SHOCK SPRING
- SPRING TYPE:
- PROGRESSIVE WOUND SPRING
- UNITS:
- EACH
- COLOR/FINISH:
- BLUE
- PROGRESSIVE SPRING RATE IMPERIAL:
- 493.00 LB/IN INITIAL
- TYPE:
- P25
- PROGRESSIVE SPRING RATE METRIC:
- 8.80 KG/MM INITIAL
- RIDING STYLE:
- OFF-ROAD
$199.99 -
RACE TECH Rear Seal Head Assembly - 40 mm ID Body x 18 mm OD Shaft SYSH 4618
RACE TECH
$59.99A quality rear seal head assembly is critical to preventing fluid leakage and maintaining system integrity under racing conditions. The RACE TECH SYSH 4618 delivers precision engineering and reliable performance, whether you're sealing a high-rpm engine...SYSH4618- SKU:
- SYSH4618
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- PRODUCT NAME:
- SEAL HEAD ASSEMBLY
- UNITS:
- EACH
- OUTSIDE DIAMETER IMPERIAL:
- 1.81'
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER IMPERIAL:
- 0.47'
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- TYPE:
- STANDARD
$59.99 -
RACE TECH Shock Oil Seal - 16 mm x 36 mm - KYB SKOS 16
RACE TECH
$12.99A worn shock seal compromises your suspension's ability to maintain consistent damping pressure, leading to fluid loss, reduced responsiveness, and unpredictable handling on track or trail. The RACE TECH Shock Oil Seal restores your KYB shock's original...SKOS16- SKU:
- SKOS16
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SHAFT SEAL
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- INSIDE DIAMETER IMPERIAL:
- 0.63'
- MODEL:
- FOR KYB
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER METRIC:
- 16.00 MM
- RIDING STYLE:
- STREET
- TYPE:
- SHOCK
- OUTSIDE DIAMETER IMPERIAL:
- 1.42'
$12.99 -
FACTORY CONNECTION Shock Spring - Spring Rate 375 lbs/in AAL-0067
FACTORY CONNECTION
$159.95Shock springs are the foundation of any suspension system's performance, and a poorly chosen rate will compromise handling, ride quality, and durability across all conditions. The FACTORY CONNECTION 375 lbs/in spring delivers consistent, predictable...13120198- SKU:
- 13120198
- Availability:
- Ships Same Business Day
- Weight:
- 4.35 LBS
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- LINEAR SPRING RATE IMPERIAL:
- 375.00 LB/IN
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SHOT PEENED
- SPRING TYPE:
- SINGLE LINEAR RATE
$159.95 -
On Sale
FACTORY CONNECTION Shock Spring - Spring Rate 170 lbs/in NNE-0030
FACTORY CONNECTION
MSRP: $149.99Now: $102.00Was: $149.99A precision shock spring demands exact specifications to deliver consistent performance lap after lap. Factory Connection's 170 lbs/in spring combines meticulous manufacturing tolerances with proven durability, ensuring your suspension responds...13120211- SKU:
- 13120211
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- COLOR/FINISH:
- SHOT PEENED
- MOUNTING POSITION:
- REAR
- SPRING TYPE:
- SINGLE LINEAR RATE
- UNITS:
- EACH
- LINEAR SPRING RATE IMPERIAL:
- 170.00 LB/IN
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
MSRP: $149.99Now: $102.00Was: $149.99 -
FACTORY CONNECTION Shock Spring - Spring Rate 274 lbs/in ALA-0049
FACTORY CONNECTION
$159.95Suspension tuning demands precision, and a shock spring's rate directly impacts your chassis balance, ride height, and overall handling characteristics. The FACTORY CONNECTION Shock Spring delivers consistent, accurate spring rates without the variances...13120389- SKU:
- 13120389
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHOCK SPRING
- COLOR/FINISH:
- SHOT PEENED
- LINEAR SPRING RATE IMPERIAL:
- 274.00 LB/IN
- RIDING STYLE:
- OFF-ROAD
- SPRING TYPE:
- SINGLE LINEAR RATE
$159.95 -
FACTORY CONNECTION Shock Spring - Spring Rate 324 lbs/in ALA-0058
FACTORY CONNECTION
$159.95Whether you're fine-tuning suspension geometry for the track or upgrading your street machine, shock spring performance directly impacts how your vehicle handles load transfer and maintains consistent ride height under acceleration and braking. The...13120392- SKU:
- 13120392
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
- LINEAR SPRING RATE IMPERIAL:
- 324.00 LB/IN
- PRODUCT NAME:
- SHOCK SPRING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SHOT PEENED
- SPRING TYPE:
- SINGLE LINEAR RATE
$159.95 -
FACTORY CONNECTION Shock Seal FCS-16U
FACTORY CONNECTION
$31.00Stock shock seals degrade under heat cycles and temperature swings, compromising your suspension's damping performance and allowing fluid weepage that shortens shock life. The FACTORY CONNECTION FCS-16U shock seal upgrades you to a compliant,...FCS16U- SKU:
- FCS16U
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- MOUNTING POSITION:
- REAR
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- SEAL
- TYPE:
- SHOCK SHAFT
- UNITS:
- EACH
$31.00
